EQX or EQS

I am in the process of a SQ oriented sytem together...so i want to have a decent EQ...i have an alpine 9835 already and koda comps and a MTX 2 channel....i have a tantrum 1200.1 and a shiva for sum temperary bump.....which would be better
to run the EQS or EQX for my system....The reason i ask is because i want to know wether or not i need the extra 4 inputs...is it ok to just run my front RCAs to the input of the EQX and run 1 out to the Comp amp and 1 out to the sub amp...